[1] Bartolini G., Ferrara A., Giacomini L., Usai E.: A combined backstepping/second order sliding mode approach to control a class of nonlinear systems. In: Proc. IEEE International Workshop on Variable Structure Systems. Tokyo 1996
[3] Bartolini G., Ferrara A., Usai E.: 
Chattering avoidance by second–order sliding modes control. IEEE Trans. Automat. Control 34 (1998), 2, 241–246 
DOI 10.1109/9.661074 | 
MR 1605966[4] Bartolini G., Ferrara A., Usai E., Utkin V. I.: Second order chattering–free sliding mode control for some classes of multi–input uncertain nonlinear systems. In: Proc. of the 6th IEEE Mediterranean Conference on Control and Systems. Alghero 1998
[6] Kanellakopoulos I., Kokotovic P. V., Morse A. S.: 
Systematic design of adaptive controllers for feedback linearizable systems. IEEE Trans. Automat. Control 36 (1991), 1241–1253 
DOI 10.1109/9.100933 | 
MR 1130494 | 
Zbl 0768.93044[7] Kirk D. E.: Optimal control theory. Prentice Hall, Englewood Cliffs, N.J. 1970
[8] Kokotović P. V., Krstić M., Kanellakopoulos I.: Nonlinear and Adaptive Control Design. Wiley, New York 1995
[10] Levant A.: Higher order sliding: collection of design tools. In: European Control Conference, Bruxelles 1997
[11] Nam K., Arapostathis A.: 
A model reference adaptive control scheme for pure-feedback non–linear systems. IEEE Trans. Automat. Control 33 (1988), 803–811 
DOI 10.1109/9.1308 | 
MR 0953874[12] Seto D., Annaswamy A. M., Baillieul J.: 
Adaptive control of a class of nonlinear systems with a triangular structure. IEEE Trans. Automat. Control 39 (1994), 1411–1428 
DOI 10.1109/9.299624 | 
MR 1283912[13] Spong M. W., Vidyasagar M.: Robot Dynamics and Control. Wiley, New York 1989